Glass reinforced plastic pipe functional layer felt winding device

Abstract

The utility model discloses a glass reinforced plastic pipe functional layer felt winding device, which belongs to the technical field of glass reinforced plastic pipe processing and comprises a mandrel, a winding machine, a functional layer felt, a functional layer felt support, a support moving structure and a functional layer felt tension structure. The core mold is driven by a winding machine to rotate, the functional layer felt is rotatably arranged on the support on the upper side of the core mold, the tension structure is used for tensioning the winding end of the functional layer felt, and the support moving structure can drive the support to move in the axial direction of the core mold and is matched with rotation of the core mold to achieve uniform and continuous winding of the functional layer felt on the periphery of the core mold. The device replaces the traditional manual operation, solves the problems of large manual operation burden, long processing time of large-diameter products and low efficiency, ensures the winding flatness of the functional layer felt, improves the overall forming quality of the glass reinforced plastic pipe from the pretreatment link, and greatly improves the working procedure production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fiberglass pipe processing technology, and in particular to a fiberglass pipe functional layer felt winding device. Background Technology

[0002] Fiberglass pipes have been widely used in industries such as petroleum, power, chemical, papermaking, urban water supply and drainage, factory sewage treatment, seawater desalination, and gas transmission due to their unique advantages, including strong corrosion resistance, smooth inner surface, low energy consumption during transportation, long service life (over 50 years), convenient transportation and installation, low maintenance costs, and low overall cost. There are three main types of fiberglass pipe production processes: reciprocating fiber winding process, continuous fiber winding process, and centrifugal casting process. Reciprocating fiber winding process (belonging to the fixed length method): In this process, the impregnation tank reciprocates with the rotating mandrel. Long fiberglass filaments are laid at a certain angle relative to the mandrel shaft. The auxiliary angle (i.e., winding angle) is controlled by the ratio of the moving speed of the impregnation tank to the rotation speed of the mandrel. The translational movement of the impregnation tank is controlled by computerized electromechanical systems. The number of winding layers gradually increases until the designed wall thickness is reached. After the winding is completed, the resin in the product is basically cured. After curing, the mandrel is removed from the fiberglass tube. In the actual production process of this process, in order to adapt to different usage requirements, a pretreatment process needs to be added before the long fiber glass filament reciprocating winding process, that is, a layer of functional layer felt is wound on the surface of the mandrel to ensure that the inner wall of the fiberglass tube produced later is smooth, and at the same time to avoid gas overflow during the subsequent inflation process.

[0003] Currently, the pre-treatment process of wrapping the functional layer felt is completed manually. During the operation, the workers need to hold the functional layer felt and move it slowly along the operating table. The functional layer felt itself has a certain weight, which not only significantly increases the workload of the workers, but also greatly prolongs the operation time of this process, resulting in low overall production efficiency, especially when producing large-diameter fiberglass pipe products. Utility Model Content

[0004] This invention provides a fiberglass pipe functional layer felt winding device to overcome the above-mentioned problems.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A fiberglass pipe functional layer felt winding device includes a mandrel, a winding machine, a functional layer felt, a functional layer felt support, a support moving structure, and a functional layer felt tension structure.

[0007] The mandrel is mounted on the winding machine and can be driven to rotate by the winding machine; the functional layer felt support is located on the outside of the mandrel.

[0008] The functional layer felt is rotatably mounted on the functional layer felt support, and the functional layer felt is located on the upper side of the core mold;

[0009] The functional layer felt tension structure is disposed on the functional layer felt support. The end of the functional layer felt near the core mold is a winding end. The winding end is wound around the core mold and can be tensioned by the functional layer felt tension structure.

[0010] The support moving structure is located at the bottom of the functional layer felt support and is used to drive the functional layer felt support to reciprocate along the axial direction of the core mold, so as to wrap the functional layer felt around the outer periphery of the core mold.

[0011] Furthermore, the functional layer felt tension structure includes an upper tension rod, a lower tension rod, a spring sheet structure, and a fixing rod;

[0012] The upper tension bar and the lower tension bar are both arranged in the transverse direction on the functional layer felt support, and the lower tension bar is located on the side of the upper tension bar away from the functional layer felt;

[0013] The fixing rod is provided on both sides of the functional layer felt support in the transverse direction, the fixed end of the spring sheet structure is provided on the fixing rod, and the free end of the spring sheet structure has an elastic clamping force towards the core mold direction;

[0014] The functional layer felt can extend through the space between the upper tension bar and the lower tension bar, and then be clamped by the elastic clamping force applied by the spring sheet structure, so that the functional layer felt is compressed and wound on the core mold.

[0015] Furthermore, the spring structure includes a spring body and a spring protrusion, the spring protrusion being hemispherical; the spring body has an elastic force for pressing the core mold; the spring body is fixedly fixed to the fixing rod at intervals along the lateral direction, and the spring protrusion is located on the side of the free end of the spring body facing the core mold; during the process of the functional layer felt being wound around the core mold, the spring protrusion and the core mold cooperate together to press the functional layer felt tightly against the surface of the core mold.

[0016] Furthermore, the functional layer felt support includes an upper frame, a lower frame, and support legs that are fixedly connected from top to bottom;

[0017] The functional layer felt is rotatably mounted on the upper frame via a functional layer felt mounting rod, one end of which is connected to the functional layer felt drive structure.

[0018] The fixing rod is installed on the lower frame.

[0019] Furthermore, the support moving structure includes a horizontal extension arm, a side extension arm, a caster wheel, and a guide wheel. The horizontal extension arm is arranged laterally and is located on both sides of the upper frame along the axial direction of the core mold. The side extension arm is located below the horizontal extension arm and has a caster wheel on its lower side. One side of the caster wheel rolls against the core mold.

[0020] The guide wheel is located on the underside of the support leg.

[0021] Furthermore, the functional layer felt drive structure includes a functional layer felt drive motor, a drive wheel, and a driven wheel;

[0022] The functional layer felt drive motor is mounted on the upper frame, and the output end of the functional layer felt drive motor is fixed with the drive wheel, which meshes with the driven wheel mounted on the functional layer felt mounting rod.

[0023] Furthermore, the lower frame is provided with handrails.

[0024] Furthermore, the winding machine includes a column, a platform, a connecting rod, and a mandrel drive device;

[0025] The columns are located on both sides of the platform. The connecting rod is arranged in the lateral direction and its two ends are rotatably mounted on the two columns respectively. The core mold is fixedly mounted on the connecting rod. One end of the connecting rod is connected to the core mold driving device.

[0026] Furthermore, it also includes a controller for controlling the start-up, shutdown, and speed adjustment of the core mold drive device and the functional layer felt drive motor.

[0027] The beneficial effects of this utility model are:

[0028] This utility model discloses a fiberglass pipe functional layer felt winding device. A functional layer felt support structure provides support for the felt body. The support structure drives the functional layer felt support to reciprocate along the mandrel axis. Combined with the rotation of the mandrel driven by the winding machine, this completes the uniform and continuous winding of the felt body around the mandrel. The functional layer felt tension structure can tighten the winding end of the felt body, preventing problems such as slackness and wrinkles during the winding process. This device replaces the traditional manual operation mode, effectively solving the problems of high workload, long processing time, and low efficiency of manual operation for large-diameter products. It also ensures the flatness of the functional layer felt winding, significantly improving process production efficiency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the main structure of a fiberglass pipe functional layer felt winding device disclosed in an embodiment of this utility model;

[0031] Figure 2 This is a side view of a fiberglass pipe functional layer felt winding device disclosed in an embodiment of this utility model;

[0032] Figure 3 This is a schematic diagram of the spring sheet structure of a fiberglass pipe functional layer felt winding device disclosed in an embodiment of this utility model.

[0033] In the picture:

[0034] 1. Core mold;

[0035] 2. Wrapping machine; 21. Column; 22. Platform; 23. Connecting rod;

[0036] 3. Functional layer felt;

[0037] 4. Functional layer felt support; 41. Upper frame; 42. Lower frame; 43. Support leg; 44. Functional layer felt mounting rod;

[0038] 5. Install the tension rod;

[0039] 6. Lower tension bar;

[0040] 7. Spring structure; 71. Spring body; 72. Spring protrusion;

[0041] 8. Fixing rod;

[0042] 9. Extendable crossbar;

[0043] 10. Extending arm side bar;

[0044] 11. Casters;

[0045] 12. Guide wheel;

[0046] 13. Functional layer felt drive motor;

[0047] 14. Drive wheel;

[0048] 15. Driven wheel;

[0049] 16. Handrails;

[0050] 17. Controller. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0052] Example:

[0053] like Figure 1-2 The image shows a fiberglass pipe functional layer felt winding device provided in this embodiment, including a core mold 1, a winding machine 2, a functional layer felt 3, a functional layer felt support 4, a support moving structure, and a functional layer felt tension structure;

[0054] The core mold 1 is mounted on the winding machine 2 and can be driven to rotate by the winding machine 2; the functional layer felt support 4 is located on the outside of the core mold 1.

[0055] The functional layer felt 3 is rotatably mounted on the functional layer felt support 4, and the functional layer felt 3 is located on the upper side of the core mold 1;

[0056] The functional layer felt tension structure is provided on the functional layer felt support 4. The end of the functional layer felt 3 near the core mold 1 is the winding end. The winding end is wound around the core mold 1 and can be tensioned by the functional layer felt tension structure.

[0057] The support moving structure is located at the bottom of the functional layer felt support 4 and is used to drive the functional layer felt support 4 to move back and forth along the axial direction of the core mold, so as to wrap the functional layer felt 3 around the outer periphery of the core mold 1.

[0058] This utility model discloses a functional layer felt winding device for fiberglass pipes. A functional layer felt support 4 supports the felt body. The support's movable structure drives the functional layer felt support 4 to reciprocate along the axial direction of the mandrel 1. Combined with the rotation of the mandrel 1 driven by the winding machine 2, this completes the uniform and continuous winding of the felt body around the mandrel 1. The functional layer felt tension structure can tighten the winding end of the felt body, preventing problems such as loosening and wrinkling during the winding process. This device replaces the traditional manual operation mode, effectively solving the problems of high workload, long processing time, and low efficiency of manual operation for large-diameter products. It also ensures the smoothness of the functional layer felt 3 during winding, improving the overall forming quality of the fiberglass pipe from the pre-treatment stage and significantly increasing production efficiency.

[0059] This utility model discloses a fiberglass pipe functional layer felt winding device. Through the coordinated operation of a mandrel, winding machine, functional layer felt support, support moving structure, and functional layer felt tension structure, it replaces the traditional manual winding method of functional layer felt, achieving automated operation of the fiberglass pipe functional layer felt winding pretreatment process. The winding machine can stably drive the mandrel to rotate, the functional layer felt support provides reliable support for the functional layer felt, and the rotatable design of the functional layer felt ensures smooth unwinding during the winding process. The support moving structure facilitates the reciprocating movement of the functional layer felt support along the mandrel axis, coordinating with the rotational movement of the mandrel to achieve uniform and continuous winding of the functional layer felt around the mandrel's outer circumference. Simultaneously, the functional layer felt tension structure can adjust the tension of the winding end of the functional layer felt in real time, ensuring that the functional layer felt remains taut throughout the winding process, effectively preventing problems such as slackness, wrinkles, and misalignment of the functional layer felt. This device effectively solves the problem of heavy workload caused by the weight of the functional layer felt during manual operation, especially in the production of large-diameter FRP pipes. It significantly shortens the winding time of the functional layer felt, improving the overall production efficiency of the FRP pipe pretreatment process. Simultaneously, the automated winding method and continuous tension control ensure the smoothness of the functional layer felt on the mandrel surface, guaranteeing a smooth inner wall of the FRP pipe after subsequent processing and effectively preventing gas overflow during the subsequent inflation process. The device features a simple and reasonable overall structure, is easy to operate, and is highly compatible with the production requirements of FRP pipe manufacturing. It effectively improves the production efficiency and processing quality of the FRP pipe pretreatment process, demonstrating good practical application value and promising prospects for wider application.

[0060] In a specific embodiment, the functional layer felt tension structure includes an upper tension rod 5, a lower tension rod 6, a spring sheet structure 7, and a fixing rod 8;

[0061] The upper tension rod 5 and the lower tension rod 6 are both arranged in the transverse direction on the functional layer felt support 4, and the lower tension rod 6 is located on the side of the upper tension rod 5 away from the functional layer felt 3;

[0062] The fixing rod 8 is provided on both sides of the functional layer felt support 4 in the transverse direction (the fixing rod 8 corresponds to the position of the core mold 1). The fixed end of the spring sheet structure 7 is provided on the fixing rod 8, and the free end of the spring sheet structure 7 has an elastic pressing force towards the core mold 1.

[0063] The winding end of the functional layer felt 3 can extend through the space between the upper tension rod 5 and the lower tension rod 6 to complete the limiting and guiding, and then be clamped by the elastic pressing force applied by the spring sheet structure 7, so that the functional layer felt 3 is pressed, flat and wound on the core mold 1.

[0064] The spring sheet structure 7 and the spring sheet protrusion 72 provide elastic clamping force to the winding end of the functional layer felt 3. Combined with the limiting and guiding effect of the upper tension rod 5 and the lower tension rod 6, the functional layer felt 3 can be stably tensioned and kept flat at all times, so that it is tightly and evenly wrapped around the surface of the core mold 1. This effectively avoids problems such as loosening, wrinkling, and displacement during the winding process, ensuring the flatness and fit of the functional layer felt 3. This lays the foundation for the smoothness of the inner wall of the fiberglass pipe and the sealing and overflow prevention effect of the inflation process.

[0065] In a specific embodiment, such as Figure 3 As shown, the spring structure 7 includes a spring body 71 and a spring protrusion 72, the spring protrusion 72 being hemispherical; the spring body 71 has an elastic force to press the core mold 1; the spring body 71 is fixed to the fixing rod 8 at intervals along the transverse direction, and the spring protrusion 72 is located on the side of the free end of the spring body 71 facing the core mold 1; during the process of the functional layer felt 3 being wound on the core mold 1, the spring protrusion 72 and the core mold 1 cooperate together, so that the functional layer felt 3 is pressed tightly against the surface of the core mold 1. The spring body 71 can continuously provide an elastic clamping force towards the core mold 1. The hemispherical spring protrusion 72 has its arc end point in contact with the surface of the functional layer felt 3, which can reduce the contact area between it and the functional layer felt 3 and reduce the risk of damaging the functional layer felt 3. The spring protrusion 72, together with the elastic force of the spring body 71 and the tensioning action of the upper tension rod 5 and the lower tension rod 6, forms an elastic clamping and tensioning effect on the winding end of the functional layer felt 3. During the entire process of the core mold 1 rotating and winding the functional layer felt 3, it can effectively avoid problems such as loosening, wrinkling, displacement and edge lifting of the functional layer felt 3, and ensure the overall flatness, tightness and uniformity of the functional layer felt 3 winding on the surface of the core mold 1.

[0066] In a specific embodiment, the functional layer felt support 4 includes an upper frame 41, a lower frame 42 and a support leg 43 that are fixedly connected from top to bottom.

[0067] The functional layer felt 3 is rotatably mounted on the upper frame 41 via a functional layer felt mounting rod 44, one end of which is connected to the functional layer felt driving structure. The fixing rod 8 is mounted on the lower frame 42 (the position of the lower frame 42 corresponds horizontally to the installation position of the core mold 1). The functional layer felt support 4 adopts a layered structure design with the upper frame 41, lower frame 42, and support legs 43 fixed sequentially from top to bottom. The overall structure is highly stable, providing a reliable installation support foundation for each functional component of the device and effectively ensuring the operational stability of the device during the winding process. At the same time, the fixing rod 8 is mounted on the lower frame 42, which corresponds horizontally to the core mold 1, so that the spring sheet structure 7 and the core mold 1 form a matching fit, ensuring that the spring sheet structure 7 (fitting with the core mold) applies force to the elastic pressing and tensioning action of the winding end of the functional layer felt 3, and fully utilizing the tension adjustment effect. In addition, the layered layout of the upper frame 41 and the lower frame 42 enables the partitioned installation of the unwinding component and the tension pressing component of the functional layer felt 3. The components are compactly arranged and do not interfere with each other during operation, thus optimizing the space utilization efficiency of the device.

[0068] In a specific embodiment, the support moving structure includes a horizontal extension arm 9, a side extension arm 10, a caster wheel 11, and a guide wheel 12. The horizontal extension arm 9 is arranged laterally and is located on both sides of the upper frame 41 along the axial direction of the core mold. The side extension arm 10 is located on the lower side of the horizontal extension arm 9, and a caster wheel 11 is provided on the lower side of the side extension arm 10. One side of the caster wheel 11 rolls against the core mold 1.

[0069] The guide wheel 12 is located on the lower side of the support leg 43. Two sets of extension arm crossbars 9, extension arm side bars 10, and casters 11 together form a moving structure. When the external force drives the support to move along the axial direction of the core mold 1, the extension arm crossbars 9 and extension arm side bars 10 simultaneously drive the casters 11 to roll axially on the surface of the core mold 1, forming a double guiding support in conjunction with the guide wheel 12 located at the bottom of the support leg 43. The casters 11, guide wheels 12, lower frame 42, and spring sheet structure 7 work together to enable the support moving structure to move smoothly and reciprocally along the axial direction of the core mold 1, achieving uniform and tight wrapping of the functional layer felt 3 around the outer periphery of the core mold 1, further ensuring the wrapping flatness and overall quality of the functional layer felt 3, and meeting the needs of continuous and efficient wrapping operations.

[0070] In a specific embodiment, the functional layer felt driving structure includes a functional layer felt driving motor 13, a driving wheel 14, and a driven wheel 15;

[0071] The functional layer felt drive motor 13 is mounted on the upper frame 41. The output end of the functional layer felt drive motor 13 is fixed with the drive wheel 14, which meshes with the driven wheel 15 mounted on the functional layer felt mounting rod 44. The functional layer felt drive structure adopts a motor-driven, gear-meshing transmission method. It is compactly mounted on the upper frame 41, with a reasonable layout, stable power transmission, and low loss. The unwinding speed of the functional layer felt 3 can be adjusted by the motor to match the rotational speed of the mandrel 1, effectively avoiding problems such as loosening, tearing, and damage of the functional layer felt 3. At the same time, the functional layer felt drive structure can ensure smooth unwinding of the functional layer felt 3, further improving the flatness and quality consistency of the winding of the functional layer felt 3 on the surface of the mandrel 1, and meeting the needs of the functional layer felt 3 winding operation.

[0072] In a specific embodiment, a handrail 16 is provided on the lower frame 42. The handrail 16 is used to apply driving force to the functional layer felt support 4, which can be manually driven to move back and forth along the axial direction of the core mold 1. The operation is convenient and labor-saving, and the speed and start / stop of the functional layer felt support 4 can be flexibly controlled. It is suitable for small-batch production, equipment debugging and other operation scenarios, improving the flexibility and practicality of the device operation. During mass production, the support leg 43 drives the functional layer felt support 4 to move axially through the frame drive device (motor, coupling, slide rail and other conventional linear drive components), realizing the automated winding process of the functional layer felt.

[0073] In a specific embodiment, the winding machine 2 includes a column 21, a platform 22, a connecting rod 23, and a core mold driving device;

[0074] The columns 21 are located on both sides of the platform 22. The connecting rod 23 is arranged in the transverse direction and its two ends are rotatably mounted on the two columns 21 respectively. The core mold 1 is fixedly mounted on the connecting rod 23. One end of the connecting rod 23 is connected to the core mold driving device. The column and platform of the winding machine provide reliable support and a stable structure, while the connecting rod provides a stable mounting base for the mandrel. The mandrel drive device includes a servo motor, a coupling, and a reducer. The output end of the servo motor is connected to the input end of the reducer via the coupling, and the output end of the reducer is connected to the end of the connecting rod 23. The transmission combination provides smooth and precise power transmission and flexible speed control. It can precisely adjust the mandrel rotation speed according to the winding requirements of the functional layer felt, ensuring a high degree of match between the support movement speed and the functional layer felt unwinding speed. This ensures that the pitch of the functional layer felt is uniform on the mandrel surface and, in conjunction with the tension structure of the functional layer felt, ensures a tight fit between the functional layer felt and the mandrel surface. The reducer can effectively increase torque and reduce speed, and the servo motor has precise speed regulation performance. The combination of the two ensures that the mandrel rotates without jamming and at a stable speed, avoiding wrinkles and deviations in the functional layer felt winding due to speed fluctuations. This provides stable rotational power support for high-quality winding of the functional layer felt and is suitable for automated winding operations.

[0075] In a specific embodiment, a controller 17 is also included, which is used to control the start / stop and speed adjustment of the mandrel drive device and the functional layer felt drive motor 13. The controller 17 is electrically connected to the servo motor, the reducer, and the functional layer felt drive motor 13. The device is also equipped with conventional sensor components to monitor operating parameters. The conventional sensor components include a mandrel speed sensor, a functional layer felt unwinding speed sensor, a support axial displacement sensor, and a functional layer felt tension sensor. Among them, the mandrel speed sensor is used to monitor the rotation speed of the mandrel 1; the functional layer felt unwinding speed sensor is used to monitor the rotation of the drive rod and the unwinding speed of the felt body; the support axial displacement sensor is used to monitor the moving speed and displacement of the support along the axial direction of the mandrel 1; and the functional layer felt tension sensor is used to monitor the tension at the winding end of the functional layer felt 3. All sensors are electrically connected to controller 17, enabling real-time acquisition of key operating parameters and feedback to controller 17. Based on preset parameters and sensor feedback signals, controller 17 automatically adjusts the speed and start / stop of the mandrel drive device and the functional layer felt drive motor 13, achieving precise matching of the operating speeds of each component. This ensures uniform winding and stable tension of the functional layer felt 3, while also promptly detecting abnormal speeds, tension imbalances, and displacement deviations. This improves the automation, stability, and winding accuracy of the device, reducing manual intervention. The controller and sensors are existing technologies; their specific detection, processing, and transmission principles, as well as control logic, will not be elaborated here.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A glass steel pipe function layer felt winding device, characterized in that, The application relates to a functional layer felt winding device, which comprises a core mold (1), a winding machine (2), a functional layer felt (3), a functional layer felt support (4), a support moving structure and a functional layer felt tension structure. The core mold (1) is installed on the winding machine (2) and can be driven to rotate by the winding machine (2); the functional layer felt support (4) is arranged outside the core mold (1). The functional layer felt (3) is rotatably arranged on the functional layer felt support (4), and the functional layer felt (3) is arranged on the upper side of the core mold (1). The functional layer felt tension structure is arranged on the functional layer felt support (4), one end of the functional layer felt (3) close to the core mold (1) is a winding end, the winding end is wound on the core mold (1), and the winding end can be tensioned through the functional layer felt tension structure. The support moving structure is arranged at the bottom of the functional layer felt support (4) and is used for driving the functional layer felt support (4) to reciprocatingly move along the axial direction of the core mold, so that the functional layer felt (3) is wound on the outer periphery of the core mold (1).

2. The filament winding apparatus for glass steel pipe functional layer felt according to claim 1, characterized in that, The functional layer felt tension structure comprises an upper tension rod (5), a lower tension rod (6), a spring piece structure (7) and a fixing rod (8). The upper tension rod (5) and the lower tension rod (6) are arranged on the functional layer felt support (4) in the transverse direction, and the lower tension rod (6) is arranged on the side, away from the functional layer felt (3), of the upper tension rod (5). The fixing rod (8) is arranged on the two sides of the functional layer felt support (4) in the transverse direction, the fixed end of the spring piece structure (7) is arranged on the fixing rod (8), and the free end of the spring piece structure (7) has elastic compression force in the direction of the core mold (1). The winding end of the functional layer felt (3) can be clamped through the elastic compression force of the spring piece structure (7) after extending through the space between the upper tension rod (5) and the lower tension rod (6), so that the functional layer felt (3) is compressed and wound on the core mold (1).

3. The filament winding apparatus for glass steel pipe functional layer felt according to claim 2, characterized in that, The spring piece structure (7) comprises a spring piece body (71) and a spring piece protrusion (72), the spring piece protrusion (72) is in a semispherical shape, the spring piece body (71) has elastic force for compressing the core mold (1), the spring piece body (71) is fixed on the fixing rod (8) in the transverse direction, the spring piece protrusion (72) is arranged on the side, facing the core mold (1), of the free end of the spring piece body (71), and the spring piece protrusion (72) and the core mold (1) are cooperatively matched during the winding of the functional layer felt (3) on the core mold (1), so that the functional layer felt (3) is compressed and adhered to the surface of the core mold (1).

4. The filament winding apparatus for glass steel pipe functional layer felt according to claim 3, characterized in that, The functional layer felt support (4) comprises an upper frame (41), a lower frame (42) and a support leg (43) which are fixedly connected in sequence from top to bottom. The functional layer felt (3) is rotatably arranged on the upper frame (41) through a functional layer felt mounting rod (44), one end of the functional layer felt mounting rod (44) is connected with a functional layer felt driving structure. The fixing rod (8) is arranged on the lower frame (42).

5. The filament winding apparatus for glass steel pipe functional layer felt according to claim 4, characterized in that, The support moving structure comprises an outrigger cross beam (9), an outrigger side beam (10), a universal wheel (11) and a guide wheel (12), the outrigger cross beam (9) is arranged transversely and is arranged on both sides of the upper frame (41) along the axial direction of the core mold; the outrigger side beam (10) is arranged on the lower side of the outrigger cross beam (9), the universal wheel (11) is arranged on the lower side of the outrigger side beam (10), and one side of the universal wheel (11) is in rolling abutment with the core mold (1); The guide wheel (12) is arranged on the lower side of the support leg (43).

6. The filament winding apparatus for glass steel pipe functional layer felt according to claim 5, characterized in that, The functional layer felt driving structure comprises a functional layer felt driving motor (13), a driving wheel (14) and a driven wheel (15); The functional layer felt driving motor (13) is installed on the upper frame (41), the driving wheel (14) is fixed to the output end of the functional layer felt driving motor (13), and the driving wheel (14) is engaged with the driven wheel (15) installed on the functional layer felt mounting rod (44).

7. The filament winding apparatus of claim 4, wherein the fiber is a glass fiber. The lower frame (42) is provided with a handrail (16).

8. The filament winding apparatus of claim 6, wherein the fiber is a glass fiber. The winding machine (2) comprises a stand column (21), a platform (22), a connecting rod (23) and a core mold driving device; The stand column (21) is arranged on both sides of the platform (22), the connecting rod (23) is arranged in the transverse direction, both ends of the connecting rod (23) are rotatably installed on the two stand columns (21), and the core mold (1) is fixedly installed on the connecting rod (23); and one end of the connecting rod (23) is in transmission connection with the core mold driving device.

9. The filament winding apparatus of claim 8, wherein the fiber is a glass fiber. Further comprising a controller (17), which is used for controlling the start-stop and speed regulation of the core mold driving device and the functional layer felt driving motor (13).

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